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    • 65. 发明申请
    • Process and composition of sulfur dyes
    • 硫化染料的工艺和组成
    • US20020069468A1
    • 2002-06-13
    • US09898996
    • 2001-07-03
    • Clariant Finance (BVI) Limited
    • J. Michael HippMark S. CarloughWilliam T. SherrillPeter J.V. Stahala
    • C09B067/00
    • D06P1/221D06P1/22D06P1/30D06P3/6025D06P3/828
    • A process for dyeing a fibrous substrate which comprises the steps of: providing a fibrous substrate; providing at least one sulfur dye; providing at least one reduction stable direct dye; and applying said reduction stable direct dye and sulfur dye to said fibrous substrate in the presence of a suitable reducing agent. Further, it has been surprising to find that these reduction stable direct dyes can be processed without a sulfur dye present. This results in a process for dyeing a fibrous substrate which comprises the steps of: providing a fibrous substrate; providing a reduction stable direct dye; and applying said reduction stable direct dye to said fibrous substrate in the presence of a suitable reducing agent.
    • 一种染色纤维基质的方法,包括以下步骤:提供纤维底物; 提供至少一种硫化染料; 提供至少一种还原稳定的直接染料; 以及在合适的还原剂存在下将所述还原稳定的直接染料和硫化染料施用于所述纤维基质。 此外,令人惊讶的是发现这些还原稳定的直接染料可以在不存在硫化染料的情况下进行加工。 这导致了对纤维基材进行染色的方法,该方法包括以下步骤:提供纤维基材; 提供还原稳定的直接染料; 以及在合适的还原剂的存在下将所述还原稳定的直接染料施加到所述纤维基材上。